Dredging-machine



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(No Model.)

J, MEN'GE.

DREDGING MACHINE.

Patented Nov. 6, 1883.

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- (No Model.) 4 Sheets'Sheet 2.

J. MENGE.

DREDGING MACHINE.

No. 288,094. n Patented Nov. 6, 1883.

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J. MENGE.

DREDGING MACHINE. No. 288,094. Patented Nov. 6, 1883.

WITNESSES I i JNT'ENTOR x V 27, .fiimye WW M v (No Model.) 4 Sheets-Shee-t 4.

J. MENGE.

DRBDGING MACHINE.

Patented Nov. 6, 1883.

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UNITED STATES EPATENT OFFICE.

JosnrH MENGE, or NEW ORLEANS, LOUISIANA.

DREDGLING-MACHINE.

' SPECIFICATION forming part of Letters Patent No. 288,C94, dated November 6, 1883.

Application filed February 21. 1883. X model.)

To aZZ whom ritmay' concern:

Be it known that I, J osnrn Manon, a citizen of theUnited States ofAmerica, residing at New Orleans, in the parish of Orleans and State of r Louisiana, have invented certain new and useful Improvements in Dredging-Machines; and I do herebydeclare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention, whichrelates to improvements in steam dredgingmachines, consists in novel means for swinging the pivoted frame with the attached bucket-frame. I 5 .It also consists in the novel construction of the scoop-bucket, as will be hereinafter more fully set forth.

It also consists in the combination and ar-.

rangement of parts, as will be hereinafter more fully set forth.

In the accompanying drawings, Figure 1 is a side view, partly in section, of the forward "part of dredging-boat with my improvements applied. Fig. 2 is a plan view of the Fig. 3 is a transverse sectional view taken through the line x as of Fig. Fig. 4 is another transverse sectional view taken through the line y y of Fig.2. Figs. 5, 6, and 7 are dififerentviews of the scoop-bucket, and 0 Fig. 8 is a perspective view of the lmcket-bottom.

In the annexed drawings, A representsthe' forward portion of a dredging boat or vessel,

having erected thereon a suitable frame, B, 5 within which is arranged a swinging frame, 0, rotating on the axial hearing at at the top and bottom, as seen in Fig. 4 of the drawings. The swinging frame consists of the side uprights,cl cl, and the end castings, e, constructed 40 with the axial bearing bolted or otherwise attached to the uprights. The lower casting, e, is, preferably, hollow forthe passage of a vertical shaft, as seen. This frame has suitably journaled near its upper end a transverse shaft, D, provided with two sprocket-chain wheels,

f, to receive and communicate positive motion to the endless sprocket-chains to which the scoop buckets are attached," and is also provided with another sprocket-chain wheel, h, arranged on the extended portion of the shaft outside of the frame. The frame is also provided with another transverse shaft, E, suittherewith in the side movements.

1 ably journaled, and having keyed thereon a miter-gear, t, engaging with the 11lll:.1 g'6li1 7c, mounted on the end of the vertical shaft F, as shown in Fig. 4 of the drawings.

To the extended end of the shaft E is keyed asprocket-chain wheel, I, for establishing a wheelh, arranged immediately above, through the agency of a sprocket-chain. To this frame G is also attached the transverse shaft m, journalcd in the bracket a, carrying the two gear-wheels, 0, and at a higher point, but on the opposite sides of the uprights, are arranged the anti-friction rollers or wheels 1). (Only one shown in Fig. 1 of the drawings.)

, The bucket-frame H of any well-known construction, is suspended at its upper end the adjustment of the bucket-frame carrying the train of scoop-buckets is accomplished, so that either deep or shallow cutting can be made. secured the side pieces, J, serving as guides for the endless chains and buckets.

The letter K (see Fig. 4) represents a horizontal shaft, suitably journaled below the deck, provided with the miter-gear r, engaging with the miter gear r on the vertical shaft F, and thedriving-pulleys in communication with the power-source for communicating motion to the train of scoop-buckets through the intermediate gearing.

'The letter L'(see Figs. 1 and 3) represents a vertical shaft, properly journaled, provided at its upper end with a sprocket-chain wheel, 8, around which passes a sprocket-chain, as will be hereinafter described, and with a miter gear, t, receiving motion through the mitergear t on thehorizontal driving-shaft M. This horizontal shaft M is provided with loose pullever q, adjustedon either end of the shaft m,

At the lower end of this frame H are power-connection with the sprocket-chain leys and a shifting-clutch between them, work- 7 ment of the sprocket-chain I, passing around the sprocket-wheel s and the tension-chain R, attached to the sides of the bucket-frame, as seen in Fig. 2 of the drawings. These chains, attached to the cross-bar of the swinging frame, in connection with the mechanism for operating the sprocket-chain P, are for swinging or shifting the swinging frame and the connected bucket-frame with its train of buckets to either the right or left for widening the cut of the canal. or stream.

The letter T (see Figs. '2 and 3) represents a transverse shaft working in suitable journals, and provided with the gear-wheel V, engag= ing and receiving motion from the pinion a, mounted on the shaft M, and also provided a with the end drums for the draw and pay-off ropes or chains. The operative connection and disconnection of this shaft is made by a lever and clutch, substantially as indicated in Fig. 3 of the drawings.

The letter XV (see Figs. 1, 5, 6, 7, and 8) represents the scoop-bucket, made of sheet metal, and with a bottom or end working on an axis. The body of this bucket is preferably made of two pieces riveted together at the sides, the upper part being within the lower part to reduce the diameter to permit the material within this section to fall loosely into the lower section, of larger diameter, and be easily discharged from the bucket. The bottom or end X of the bucket is formed or provided with the perforated lugs 2 for the reception and passage of the pivot-rod 3,which is riveted at its ends to the-sides of the bucket at 4, and is also formed at the inner end with the inward projection or heel 5', to keep the bottom of the bucket practically closed. To the sides of the bucket, near the inner end of the bottom, are arranged the little brackets 6, acting as stops to prevent the bottom in discharging the load from swinging or moving beyond a given point. The forward or upper portion of the bottom is made heavier than the lower portion in rear of the pivot, for the purpose of assisting to force out the material, when the bucket assumes a horizontal position or nearly so. The front upper portion of the bucket, it will be observed, is corrugated or formed with gouge-shape cutting-edge, for the purpose of cutting readily and easily in heavy sticky soil, and obviating the tendency of the soil to stick or adhere to this portion of the bucket in the digging.

ing above and below, of the vertical shaft pass\.;

ing through the lower casting of the frame, and the gearing for operating the said frame, substantially as described.

2. In a dredging-frame, the combination,

with a swinging frame having at or near its base a cross-bar, and carrying a bucket-frame, of the sprocket and tension chains attached to the swinging and bucket frames, and operating mechanism for shifting the position of the said frame, substantially as described.

8. A scoop-bucket for a dredger, the body of which is made of two shaped pieces of different diameters in atransverse cross-section, firmly united, the upper part being of lesser diameter than the lower part, as described, and for the purpose set forth.

4. A scoop-bucket for a dredger, the body of which is made of two shaped pieces of different diameters in cross-section, and firmly united, a tilting bottom, and stop device, sub stantially as described.

5. A scoop-bucket for a dredger having the upper edge of the upper portion corrugated or formed with a gougeshape cutting-edge, substantially as described, and for the purpose set forth.

6. The improved bucket for a dredger, consisting of the body having the lower portion of larger diameter than the upper, and the upper cutting-edge corrugated and provided with the tilting bottom and side stops, substantially as described.

In testimony whereof I affiX my signature in presence of two witnesses.

JOSEPH MENGE. itnesses:

EDWIN Liirznn, ALFRED INGRAHAM. 

